JPH09224459A - Receiver net system for theresher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the loss of grains to be presented for seed selection by specific gravity by improving efficiency for dropping down grains from a receiver net inside a threshing chamber in the process of threshing work, and to reduce the damage of grains caused by the impulse of a treatment drum as much as possible by suppressing the grains from being carried out of a dust feeding port into a treatment drum chamber as much as possible. SOLUTION: A receiver net 2 spread downside the threshing chamber is divided parallelly with the axial center of a threshing drum so as to be composed of a 1st receiver net part 2A spread over the full width of the threshing chamber and a 2nd receiver net part 2B spread excepting for a dust feeding port 4 opened on the top end side of terminal part of the threshing chamber, and the 2nd receiver net part 2B is formed from a concave-shaped receiver net 2C having big meshes different from the 1st receiver net part 2A.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a netting device in a threshing machine, and more particularly, in the process of threshing work, from the netting in the handling chamber from the threshing cullet supply port to the dust sending port. In addition to improving the grain leakage efficiency to reduce the load on the handling cylinder, it also minimizes the carry-out of grains from the dust inlet to the processing chamber, and in the processing chamber, coarsely sorted items such as spikes and culms are selected. To reduce the load on the processing cylinder,
The loss of grains used for specific gravity sorting can be prevented, and the damage to the grains due to the impact of the processing cylinder can be reduced as much as possible, so that the desired sorting performance can be maintained and the threshing work can be performed lightly. The present invention relates to a net receiving device in a threshing machine.

[0002]

2. Description of the Related Art Conventionally, a receiving net stretched over the lower side of a handling room has been composed of a crimp net or the like having meshes of the same size. Grains are likely to occur, the handling cylinder is loaded more than necessary, the grain leakage efficiency in the handling chamber is reduced, and the grains used for specific gravity sorting by the grain swinging sorting body located below the receiving net. In addition to the problem that causes the loss of the grain, the amount of grains mixed in the coarsely sorted products such as spike cutting grain culms sent to the processing chamber from the dust inlet increases,
Unnecessary load is applied to the processing cylinder that processes the coarsely sorted products, and there is a problem that the grain is damaged due to the second impact from the processing cylinder, which significantly impairs the desired sorting performance.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances and was devised in order to eliminate the conventional inconvenience. From the supply port to the dust delivery port, the efficiency of grain leakage from the net in the handling chamber is improved to reduce the load on the handling cylinder, and the grain from the dust delivery port to the processing chamber is removed. By suppressing carry-out as much as possible, the processing cylinder chamber is used to process the coarsely sorted products such as spiked culms, thereby reducing the load on the processing cylinder and thus preventing the loss of the grains used for specific gravity selection. An object of the present invention is to provide a net-receiving device in a thresher capable of lightly performing the threshing work in a state where the damage to the grain due to the impact of the barrel is reduced as much as possible and the desired sorting performance is maintained. It is a thing.

[0004]

In order to solve the above-mentioned problems, the technical means adopted by the present invention is such that a receiving net is stretched below the handling chamber in which the handling barrel is mounted and the sorting is performed below the receiving net. In a thresher in which a grain rocking sorting body is erected in parallel with the axial direction of the handling cylinder so that it can be rocked back and forth, the receiving net is divided in parallel with the axial direction of the handling cylinder to provide the full width of the handling chamber. The first net-receiving portion is stretched, and the second net-receiving portion is stretched except for the dust inlet opening on the tip side of the end of the handling chamber, and the second net-receiving portion is the first net-receiving portion. It is characterized in that it is formed by a concave-shaped net having a large mesh different from the above, and that the terminal end side of the second net-receiving portion is made to face the starting end of the processing cylinder.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In FIG. 1 to FIG. 3, reference numeral 1 is a thresher handling room, and the handling room 1 is a front wall 1a,
It is formed so as to be surrounded by the rear wall 1b, the ceiling wall 1c and the receiving net 2, and inside thereof, a handling cylinder 3 is mounted between the front wall 1a and the rear wall 1b. The receiving net 2 is divided into two parallel to the axial direction of the handling barrel 3 and extends over the entire width of the handling chamber 1 in the front-rear direction, and a tip end side of the handling chamber 1. The second net portion 2 </ b> B is stretched except for the dust-sending port 4 that is open to the bottom, and the respective divided edges are integrally joined via the joining member 5. The second receiving net portion 2B is formed of a concave net 2C having a large mesh size different from that of the first receiving net portion 2A, and there is no limitation on the material, and even if it is made of metal, It may be made of resin.

Further, the first receiving network portion 2A of the receiving network 2 and the second receiving network portion 2A
Partition plates 2a, 2b, 2c are erected on the net portion 2B at predetermined intervals in the front-rear direction. In the embodiment, as shown in FIG. Although the concave net 2C is formed between the plates 2c and 2b, the present invention is not limited to this, and the second net 2B as a whole may be the concave net 2C. Reference numeral 6 is a side plate that partitions the second receiving net portion 2B and the dust sending port 4.

Further, the handling cylinder 3 is divided into two parts in the front-rear direction so that the front handling cylinder 3a rotates at a low speed and the rear handling cylinder 3b rotates at a high speed. The composition ratio is, assuming that the entire width of the handle cylinder 3 in the front-rear direction is 100%,
The width of the front handle cylinder 3a is 45% and the width of the rear handle cylinder 3b is 5%.
It is set to be 5%.

A sorting chamber 7 is formed below the receiving net 2 of the handling chamber 1, and a grain culm supply guide plate 8 is provided at the front end of the receiving net 2.
Is extended to the front. 9 is a grain culm supply port, and 10 is an automatic grain culm feeder. Reference numeral 11 denotes a processing barrel chamber formed by being connected to the end tip side of the handling chamber 1. In the processing barrel chamber 11, a processing drum 12 has its starting end formed on the second receiving net portion 2B. The concave net 2C is pivoted rearward while facing the end portion side of the net 2C. 12a is a processing chamber 1
It is a receiving network stretched on the lower side of 1.

Numeral 13 is a grain swinging sorting body which is located inside the sorting chamber 7 and is movably installed in parallel with the axial direction of the handling cylinder 3 so as to be swingable back and forth. Grain transfer plate 14
And a rocking sorting mechanism 15 connected to it, the grain transfer plate 14 is extended in a downward gradient from below the starting end of the receiving net 2 of the handling chamber 1 to near the vicinity of the dust delivery port 4, The swing selecting mechanism 15 includes a swing sheave 16 that extends in an upward gradient from the end of the grain transfer plate 14 to a position below the dust inlet 4 and below the midway portion of the net 12a of the processing chamber 11. The upper end of the swing sheave 16 faces the lower side of the receiving net 12a of the processing chamber 11, and the retan pan 17 is installed in parallel with the swing sheave 16 in an upward slope, and below the swing sheave 16. With a gren sheave 19 that is installed in an upwardly sloped shape facing above the first opening 18 and a rack 21 that extends from the end of the gren sheave 19 toward the wind selection chamber 20 further rearwardly in an ascending slope shape. , Composed of multiple rocking sorting shelves It has been. The grain transfer plate 14 is formed of a corrugated plate having no holes, and the swing sheave 1
Reference numeral 6 denotes fins formed at equal intervals in the front-rear direction, and the retan pan 17 has one half on the starting end side formed of a non-perforated corrugated plate and the other half on the terminal end side formed at equal intervals in the front-rear direction. The fins are erected, but the fin spacing is narrower than the fin spacing of the swing sheave 16.

Reference numeral 22 denotes a sorting wind passage formed below the grain swinging sorting body 13. At the start end side of the sorting wind passage 22, a Karako (compressed air fan) rotating in a counterclockwise direction (arrow direction). Two
3 is provided, the discharge side of which faces the wind-selecting chamber 20 which is located axially rearward of the handling cylinder 3, and a counterclockwise direction is provided below the dust collecting chamber 24 formed in the wind-selecting chamber 20. A cross-flow fan (suction fan) 25 that rotates in the (arrow direction) is provided. Reference numeral 26 is a sirocco fan disposed between the first opening 18 and the second opening 27. The sirocco fan 26 rotates clockwise (in the direction of the arrow) to move from the end of the swing sheave 16 to the rack 21. The selection room 20 for the straw etc. released above
It acts to blow it to the side. 28 is a fried cylinder,
29 is a grain conveyor screw conveyor (1st spiral), 30
Is a second product reducing cylinder, and its discharge side is the grain transfer plate 14
Standing on top. Reference numeral 31 is a culm transporting device, and 32 is a culm cutting device.

Next, the operation of the present invention configured as above will be described. Now, the grain culm, which has been supplied from the grain culm supply guide plate 8 through the grain culm feed guide plate 8 into the handling chamber 1 by the grain culm automatic feeder 10, is threshed by the rotation of the handling barrel 3, and from the mesh of the receiving net 2. The leaked mixture of grains and straw chips falls on the grain transfer plate 14 and the proximal end side of the swing sheave 16. Then, the fallen mixture is subjected to a wind-selecting action by the pressure air discharged from the Karato 23 in the process of being transported toward the tip side while being sorted by the specific gravity by the swinging motion of the grain swinging and sorting body 13 in the upper layer. Straws with a small specific gravity that have floated are blown to the wind selection chamber 20, sucked by the cross-flow fan 25 and discharged to the rear outside the machine, and the grains with a large specific gravity that have settled in the lower layer are the gaps between the fins of the swing sheave 16. Since it falls onto the Glensieve 19 and is selected by the pressured air blown from below the Glensieve 19, fine granules containing no contaminants are collected in the No. 1 port 18.

On the other hand, the coarsely-sorted material such as the panicle culms discharged from the dust delivery port 4 of the handling chamber 1 is fed from the starting end of the processing cylinder 12 into the processing cylinder chamber 11 and processed by the rotation of the processing cylinder 12. Then, the mixture is dropped from the receiving net 12a and onto the lower return pan 17, but the fallen mixture is wind-selected by the front-back swinging motion of the grain swinging sorting body 13 and the pressure wind from the Karako 23, and the straw dust having a small specific gravity is blown by the wind. Grains that have been blown into the selection chamber 20 and have a large specific gravity drop onto the swing sheave 16 below through the fin gaps of the retort pan 17 and further onto the Glen Sheave 19 below through the fin gaps of the swing sheave 16 to make the No. 1 mouth. 18 collected. Further, the long straws fall on the rack 21, but the long straws are blown to the side of the dust pipe 24 formed in the air selection chamber 20 by the pressure air of the sirocco fan 26 blown from the lower side of the rack 21 and cross flow. The air is sucked by the fan 25 and is discharged to the rear outside the machine.

In the above-mentioned series of threshing work, if the work is continuously carried out for a long time or the wet material is threshed, the mesh of the receiving net 2 will be clogged and an excessive load will be imposed on the handling cylinder 3. This is not acceptable, and the grain leakage efficiency in the handling room 1 is reduced, and the grain is mixed in a large amount into coarsely sorted products such as spike-cutting grain culms discharged from the dust inlet 4. Processing cylinder 12
Load more than necessary, resulting in the loss of the grains used for the specific gravity selection, the damage of the grains due to the impact of the processing cylinder 12, and the failure to maintain the desired sorting performance. Occurs.

However, in the present invention, the receiving net 2 stretched under the handling chamber 1 is divided into two parallel to the axial direction of the handling barrel 3 and stretched over the entire width of the handling chamber 1. Net 2A and handling room 1
The second net-receiving portion 2B is a first net-receiving portion 2B that is stretched except the dust-sending port 4 that is open to the tip end side of the second net-receiving portion 2B.
Since the concave net 2C having a large mesh size different from that of the net 2A is formed and the terminal end side of the second net 2C is made to face the starting end of the processing cylinder 12, the threshing work is performed. Even when threshing is performed continuously for a long time or when the moistening material is threshed, in the process of threshing work from the grain culm supply port 9 of the handling room 1 to the dust sending port 4, leakage of grains and impurities is prevented. In particular, the concave-shaped second receiving net portion 2B having a large mesh is surely promoted without clogging and the load on the handling cylinder 3 can be reduced. It is possible to suppress the carry-out of grains as much as possible. Therefore, the processing cylinder chamber 11 processes the coarsely selected products such as the panicle culms, so that the load on the processing cylinder 12 can be reduced. Therefore, the loss of the grains used for the specific gravity selection is prevented, and the damage to the grains due to the impact of the processing cylinder 12 is reduced as much as possible.
The desired sorting performance can be maintained.

FIG. 4 shows another embodiment of the threshing machine. The difference between this threshing machine and the threshing machine is that the lower peripheral surface of the conical portion 3'formed at the starting end of the handling barrel 3. Is provided with an inlet plate 3 ″ in a slanted shape, and a grain culm supply guide plate 8 is extended at the front end thereof,
The rear end portion is connected to the front end portion of the receiving net 2, and a large number of communicating with the grain transfer plate 14 of the lower grain rocking and sorting body 13 is provided at a position corresponding to the conical portion 3'of the inlet plate 3 ". Holes a, a
... is provided, and the rest of the configuration is the same. Therefore, if this type of threshing machine is adopted, the grains shattered and scattered by the impact of the handling barrel 3 at the time of supplying the grain culm and the spouted grains are delivered to the banner b provided at the grain culm supply port 9. , Can be dropped onto the grain transfer plate 14 from a large number of holes a, a, and loss of grains used for specific gravity sorting can be prevented.

FIGS. 5 to 6 show a further embodiment of the thresher, and the difference between this and the thresher shown as the other embodiment is that the front end of the inlet plate 3 "is different. On the grain culm supply guide plate 8 extended to the lower part, the lower grain swinging and sorting body 13
The elongated holes 8a communicating with the grain transfer plate 14 are provided in a plurality of rows in the lateral direction, and the rest of the configuration is the same. Therefore, also in this type of threshing machine, the grain that has been shattered and blown out by the impact of the handling cylinder 3 at the time of supplying the grain culm or the grain that has blown out is transferred from the long hole 8a to the grain transfer plate 1 before reaching the hanging screen b.
No. 4 can be dropped and the loss of the grains used for the specific gravity selection can be prevented.

[0017]

As is apparent from the above description, according to the present invention, a receiving net is stretched below the handling chamber in which the handling cylinder is mounted, and a grain swinging sorting body is provided in the sorting chamber below the receiving net. In a thresher constructed so as to be swingable back and forth in parallel with the axial direction of the handling cylinder, the first receiving net portion which is divided into parallel with the axial direction of the handling cylinder and is stretched over the entire width of the handling chamber. And a second net portion that is stretched except for the dust-sending port that is open to the tip side of the end of the handling chamber,
The second net-receiving portion is formed of a concave net having a large mesh different from that of the first net-receiving portion, and the end portion side of the second net-receiving portion faces the starting end portion of the processing cylinder. Therefore, even if threshing work is continuously performed for a long time or threshing a damp material, grains and contaminants are included in the process of threshing work from the grain culm supply port of the handling room to the dust delivery port. The concave-shaped second net portion, which has a particularly large mesh, facilitates the leakage of the material without clogging, and the load on the handling cylinder can be reduced. It is possible to suppress the carry-out of the grains as much as possible, and therefore, the coarsely sorted products such as the pancake culms are treated in the treatment drum chamber, and the load on the treatment drum can be reduced. Therefore, the loss of the grains used for the specific gravity sorting is prevented, and the damage to the grains due to the impact of the processing cylinder is reduced as much as possible, and the threshing work is performed while maintaining the desired sorting performance. The effect that can be performed lightly.

[Brief description of drawings]

FIG. 1 is an overall side view of a thresher showing an internal configuration as seen through.

FIG. 2 is a rear view of the same.

FIG. 3 is a perspective view of a main part of a receiving net.

FIG. 4 is a side view of the essential parts of another embodiment of the threshing machine showing the internal structure in a see-through manner.

FIG. 5 is a side view of the essential parts of still another embodiment of the threshing machine showing the internal structure thereof in a see-through manner.

FIG. 6 is a plan view of the main part of the above-mentioned grain culm supply guide plate.

[Explanation of symbols]

 1 Handling Room 2 Receiving Net 2A First Receiving Net 2B Second Receiving Net 2C Concave Receiving Net 3 Handling Cylinder 4 Dust Port 7 Sorting Room 12 Processing Cylinder 13 Grain Swing Sorter

Claims (1)

[Claims] 1. A receiving net is stretched under a handling chamber on which a handling cylinder is mounted, and a grain swinging and sorting body is swingable back and forth in parallel with the axial direction of the handling barrel in a sorting chamber below the receiving net. In the thresher constructed in the above, the receiving net is divided in parallel with the axial direction of the handling cylinder, and the first receiving net portion stretched over the entire width of the handling chamber and opened at the tip side of the handling chamber end portion. The second net-receiving part is formed by a stretched second net-receiving part except the dust-sending port, and the second net-receiving part is formed by a concave mesh net having a large mesh different from that of the first net-receiving part. A net-receiving device for a threshing machine, characterized in that the terminal-end side of the net-receiving part faces the starting end of the processing cylinder.